Stove and other pipes



(No Model.)

P. L. HIRSOHMANN.

STOVE AND OTHER PIPES. No. 305,188. Patented Sept. 1 6, 1884.

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\ FREDERICK LOUIS HIRSCHMANN, OF NORWVAY, MICHIGAN.

STOVE AND OTHER PIPES.

SPECIFICATION forming part of Letters Patent No. 305,188, datedSeptember 16, 1884.

Application filed January 31, 1884. (No model.)

To all whom it may concern:

Be it known that I, Fnnnnmon LOUIS HIRSOHMANN, of Norway, in the countyof Menominee and State .of Michigan, have invented certain new anduseful Improvements in Stove and other Pipes, of which the following isa full, clear, and exact description.

This invention relates to sheet iron or metal pipes applicable, amongother purposes or uses, to stoves; and the invention will here bedescribed more particularly with reference to such use; but it isequally applicable to pipes put together in sections or lengths forother purposes.

The invention consists in apipe-section or series of sections made witha close body part and half-pipe extensions fitting bylongitudinally-sliding lock-joints one along the other, and providedwith tongues or nose-end projections and catches, for overlapping fit ofthe pipe-sections in a crosswise direction one over the otherinterinediately of their length, substantially as hereinafter described,whereby a very strong pipe is obtained, time and labor are economized inputting it up, and space reduced when storing or transporting it.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar letters of reference indicatecorresponding parts in all the figures.

Figure 1 represents an exterior side view of a piece of pipe composed ofseveral sections or lengths embodying my invention. Fig. 2 is a similarview to Fig. 1 of one of the pipe-sections detached as seen from thereverse side and as turned half round from the position it occupies inFig. 1. Fig. 3 is an exterior longitudinal front view of the piece ofpipe shown in Fig. 1, and Fig. 4 a longitudinal section upon the line 00x in Fig. 3. Fig. 5 is a transverse section of the pipe on the line 3/ yin Fig. 1;

and Fig. 6, afurther transverse section on the line 2 2, Fig. 1.

sion half'pipe portions or pieces a, a, forming longitudinalcontinuations of the body part A, and being integral parts of it. Theseextension reverse half-pipe sections A A are formed each with itsexposed longitudinal edges bent to make a half-lap folding or slidingjoint, I

uration, forming a nose end, 0, and the end of i the body part nextadjacent to said half-pipe extension is constructed to form a similarnose end, a, on the opposite side of the pi pe-section. The otherhalf-pipe extension, a, of said body A is or may be made square at itsother cxtremity, as at lthat is, without any nose end. Upon the front orone sidejof the body part A, which lies between the line of thejoints 1) 2), near the opposite end of said body part, to the nose end 0of the one extension half-pipe a, is a sheet or cast metalcatch, e,which may be made ornamental. The other lengths or sections of pipe,which are fitted to engage at eitherend with the length or section ofpipe above described, are or may be similarly constructed. Thus to theright hand of Figs. 1, 3, and 4 is a halfpipe extension, (0, of anotherpipe-section body, A, made with a tongue or nose end, 0, which engages,when the pipe-sections are slid, by their lap-joints I), together, withthe catch 0 on or near the end of the body part A of the firstdescribedpipe-section, while the other nose end, as here shown, of thepipe-section body A engages with a catch, 6,

on the square-ended half-pipe extension a of 0 the body A 011 theopposite half of the pipe. The opposite end of the pipe-section firstdescribed is similarly joined by like lap-folded sliding side joints andcatches of a further like pipe-section, (shown to the left of Figs. 1,3, 4,) within one of the catches a of which the nose end 0 of thehalf-pipe extension (0 of the pipe-body A engages. The several nose ends0 of the several pipe-sections engage with catches e on the nextadjacent pipe-section successively on opposite sides of the whole pipe.

Supposing this left-hand pipe-section, the body of which is marked A anda'half-pipe extension from it marked (f, to be the terminal section ofthe pipe, it may end square with its body part, as shown, to fit theelbow or the stove, supposing the pipe to be applied to stoves, or asother circumstances may require. Elbows for such pipe may be similarlycon structed, or the pipe may be fitted with ordinary or any othersuitable elbows.

A pipe thus constructed will be as strong as a riveted pipe, and may beconnected for a longer distance withoutholding it by wire to the ceilingor elsewhere. As the cross-joints are broken in the middle of eachpipesection,

the seam may be made free or loose, and the sliding longitudinal lockinglap-joints of the pipe-sections readily fit or work one withinthe other,and the jointed connections of the sections give an unusual amount ofstrength.

Having thus described my invention, I claim as new and desire to secureby Letters Patent 1. A sheet-metal pipe-section constructed with aclosed body part and half-pipe extensions, the edges of which are bentto form a lap-folded sliding joint, essentially as de scribed.

2. A sheet-metal pipe-section constructed with a closed body part,'A,half-pipe extensions a a at opposite ends of said body part, and onreverse sides of the longitudinal center thereof, the one end of saidbody part and other extremity of one of said extensions beingconstructed each with a tongue or nose end, 0, both extensions withlap-folded sliding-joint portions 6 on their longitudinal edges, and thepipe-section provided with catches e on opposite sides of it,substantially as and for the purposes herein set forth.

3. The combination of a series of any number of .pipesections havingclosed bodies A A A with half-pipe extensions a a a constructed to slideby longitudinal lock-joints Z2 at their edges, one alongthe other, andsaid sections being provided with tongues or nose ends 0 and catches e,for engagement of the sections with each other, essentially asdescribed.

FREDERIOK LOUIS IIIRSOIIMANN.

